Metadata: Identification_Information: Citation: Citation_Information: Originator: Peter Dartnell Originator: Rikk G. Kvitek Publication_Date: 2016 Title: Backscatter [8101]--Offshore of Monterey, California Edition: 1.0 Geospatial_Data_Presentation_Form: GeoTiff Series_Information: Series_Name: Data Series Issue_Identification: DS 781 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ds781 Online_Linkage: https://cmgds.marine.usgs.gov/data/csmp/OffshoreMonterey/data_catalog_OffshoreMonterey.html Larger_Work_Citation: Citation_Information: Originator: Nadine E. Golden Publication_Date: 2015 Title: California State Waters Map Series Data Catalog Geospatial_Data_Presentation_Form: database Series_Information: Series_Name: Data Series Issue_Identification: DS 781 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ds781 Description: Abstract: This part of DS 781 presents data for the acoustic-backscatter map of the Offshore of Monterey map area, California. Backscatter data are provided as separate grids depending on resolution. This metadata file refers to the data included in "Backscatter_8101_OffshoreMonterey.zip," which is accessible from https://doi.org/10.5066/F70Z71C8. These data accompany the pamphlet and map sheets of Johnson, S.Y., Dartnell, P., Hartwell, S.R., Cochrane, G.R., Golden, N.E., Watt, J.T., Davenport, C.W., Kvitek, R.G., Erdey, M.D., Krigsman, L.M., Sliter, R.W., and Maier, K.L. (S.Y. Johnson and S.A. Cochran, eds.), 2016, California State Waters Map Series—Offshore of Monterey, California: U.S. Geological Survey Open-File Report 2016–1110, pamphlet 44 p., 10 sheets, scale 1:24,000, https://doi.org/10.3133/ofr20161110. The acoustic-backscatter map of the Offshore of Monterey map area in central California was generated from backscatter data collected by California State University, Monterey Bay (CSUMB) and by Monterey Bay Aquarium Research Institute (MBARI). Mapping was completed between 1998 and 2012 using a combination of multibeam echosounders including 200-kHz/400-kHz Reson 7125, 100-kHz Reson 7111, 240 kHz Reson 8101, and 30-kHz Simrad EM-300 as well as 234-kHz and 468-kHz SWATHplus bathymetric sidescan-sonar system. Within the final imagery, brighter tones indicate higher backscatter intensity, and darker tones indicate lower backscatter intensity. The intensity represents a complex interaction between the acoustic pulse and the seafloor, as well as characteristics within the shallow subsurface, providing a general indication of seafloor texture and composition. Backscatter intensity depends on the acoustic source level; the frequency used to image the seafloor; the grazing angle; the composition and character of the seafloor, including grain size, water content, bulk density, and seafloor roughness; and some biological cover. Harder and rougher bottom types such as rocky outcrops or coarse sediment typically return stronger intensities (high backscatter, lighter tones), whereas softer bottom types such as fine sediment return weaker intensities (low backscatter, darker tones). Purpose: These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2000 Ending_Date: 2006 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.06 East_Bounding_Coordinate: -121.78 North_Bounding_Coordinate: 36.69 South_Bounding_Coordinate: 36.53 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:0a6925b0-fbb9-45e4-8618-6be3e63b5101 Theme: Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD) Theme_Keyword: Bathymetry Theme_Keyword: Seafloor Topography Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Seafloor Character Theme_Keyword: Fisheries Theme_Keyword: Ecosystem Theme_Keyword: Multibeam Theme_Keyword: Geology Theme_Keyword: Bathymetry Theme_Keyword: Backscatter Theme_Keyword: Intensity Theme_Keyword: Ocean Floor Topography Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: environment Theme_Keyword: oceans Theme_Keyword: imageryBaseMapsEarthCover Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: distributions Theme_Keyword: physical habitats and geomorphology Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: seabed Theme_Keyword: sidescan sonar Theme_Keyword: marine geophysics Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: sidescan sonar Theme_Keyword: image mosaics Theme_Keyword: marine geophysics Theme_Keyword: sea-floor characteristics Theme_Keyword: sea-floor acoustic reflectivity Theme: Theme_Keyword_Thesaurus: Coastal and Marine Ecological Classification Standard (CMECS) Theme_Keyword: Marine Nearshore Subtidal Theme_Keyword: Marine Offshore Subtidal Theme_Keyword: Transform Continental Margin Theme_Keyword: Continental/Island Shelf Theme_Keyword: Rock Substrate Theme_Keyword: Unconsolidated Mineral Substrate Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Place_Keyword: State of California Place_Keyword: Monterey Place_Keyword: Monterey County Place_Keyword: Seaside Place_Keyword: Marina Place: Place_Keyword_Thesaurus: Coastal and Marine Ecological Classification Standard (CMECS) Place_Keyword: Northern California Ecoregion Stratum: Stratum_Keyword_Thesaurus: Coastal and Marine Ecological Classification Standard (CMECS) Stratum_Keyword: Substrate Access_Constraints: None Use_Constraints: USGS-authored or produced data and information are in the public domain. Acknowledge the U.S. Geological Survey, California State University, Monterey Bay, Seafloor Mapping Lab, and Monterey Bay Aquarium Research Institute in products derived from these data. Share data products developed using these data with the U.S. Geological Survey. This information is not intended for navigational purposes. Read and fully comprehend the metadata prior to data use. Uses of these data should not violate the spatial resolution of the data. Where these data are used in combination with other data of different resolution, the resolution of the combined output will be limited by the lowest resolution of all the data. This database has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Although this Federal Geographic Data Committee-compliant metadata file is intended to document these data in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060-5792 Country: US Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/56cf5fc5e4b015c306ed183c?name=Backscatter_8101_OffshoreMonterey.jpg&allowOpen=true Browse_Graphic_File_Description: Acoustic backscatter imagery offshore of Monterey. Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 10.0 Cross_Reference: Citation_Information: Originator: Johnson, S.Y. Originator: Dartnell, P. Originator: Hartwell, S.R. Originator: Cochrane, G.R. Originator: Golden, N.E. Originator: Watt, J.T. Originator: Davenport, C.W. Originator: Kvitek, R.G. Originator: Erdey, M.D. Originator: Krisgman, L.M. Originator: Sliter, R.W. Originator: Maier, K.L. Publication_Date: 2016 Title: California State Waters Map Series--Offshore of Monterey, California Series_Information: Series_Name: Open-File Report Issue_Identification: 2016-1110 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20161110 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Not applicable for raster data. Logical_Consistency_Report: Unspecified Completeness_Report: Complete Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Estimated to be no less than 2 m, owing to water depth and total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Not applicable to acoustic-backscatter imagery. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Seafloor Mapping Lab, California State University Monterey Bay Publication_Date: 20061231 Title: CanRowMosaic.tif Geospatial_Data_Presentation_Form: raster digital data Online_Linkage: http://seafloor.otterlabs.org/SFMLwebDATA_mb.htm#MONT Type_of_Source_Media: digital file of gridded sidescan Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20000607 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Can Row SSS Source_Contribution: Gridded sidescan sonar data (1-meter resolution). Source_Information: Source_Citation: Citation_Information: Originator: Seafloor Mapping Lab, California State University Monterey Bay Publication_Date: 20061231 Title: HopDeepReefmosaic.tif Geospatial_Data_Presentation_Form: raster digital data Online_Linkage: http://seafloor.otterlabs.org/SFMLwebDATA_mb.htm#MONT Type_of_Source_Media: digital file of gridded sidescan Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000607 Ending_Date: 20000615 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Hope Deep Reef SSS Source_Contribution: Gridded sidescan sonar data (1-meter resolution). Source_Information: Source_Citation: Citation_Information: Originator: Seafloor Mapping Lab, California State University Monterey Bay Publication_Date: 20061231 Title: Hoplovptmosaic.tif Geospatial_Data_Presentation_Form: raster digital data Online_Linkage: http://seafloor.otterlabs.org/SFMLwebDATA_mb.htm#MONT Type_of_Source_Media: digital file of gridded sidescan Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000607 Ending_Date: 20000615 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Hope to Lovers Pt SSS Source_Contribution: Gridded sidescan sonar data (0.2-meter resolution). Source_Information: Source_Citation: Citation_Information: Originator: Seafloor Mapping Lab, California State University Monterey Bay Publication_Date: 20061231 Title: LovPtPtPnsmosaic.tif Geospatial_Data_Presentation_Form: raster digital data Online_Linkage: http://seafloor.otterlabs.org/SFMLwebDATA_mb.htm#MONT Type_of_Source_Media: digital file of gridded sidescan Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000607 Ending_Date: 20000615 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Lovers Pt SSS Source_Contribution: Gridded sidescan sonar data (0.2-meter resolution). Source_Information: Source_Citation: Citation_Information: Originator: Seafloor Mapping Lab, California State University Monterey Bay Publication_Date: 20061231 Title: Monasterymosaic.tif Geospatial_Data_Presentation_Form: raster digital data Online_Linkage: http://seafloor.otterlabs.org/SFMLwebDATA_mb.htm#MONT Type_of_Source_Media: digital file of gridded sidescan Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000607 Ending_Date: 20000615 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Monastery Mosaic SSS Source_Contribution: Gridded sidescan sonar data (0.2-meter resolution). Source_Information: Source_Citation: Citation_Information: Originator: Seafloor Mapping Lab, California State University Monterey Bay Publication_Date: 20061231 Title: PinnNESWMosaic.tif Geospatial_Data_Presentation_Form: raster digital data Online_Linkage: http://seafloor.otterlabs.org/SFMLwebDATA_mb.htm#MONT Type_of_Source_Media: digital file of gridded sidescan Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000607 Ending_Date: 20000615 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Peninsula Mosaic SSS Source_Contribution: Gridded sidescan sonar data (0.2-meter resolution). Source_Information: Source_Citation: Citation_Information: Originator: Seafloor Mapping Lab, California State University Monterey Bay Publication_Date: 20061231 Title: PtJoeCypressPtMosaic.tif Geospatial_Data_Presentation_Form: raster digital data Online_Linkage: http://seafloor.otterlabs.org/SFMLwebDATA_mb.htm#MONT Type_of_Source_Media: digital file of gridded sidescan Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000607 Ending_Date: 20000615 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Cypress Pt SSS Source_Contribution: Gridded sidescan sonar data (0.2-meter resolution). Source_Information: Source_Citation: Citation_Information: Originator: Seafloor Mapping Lab, California State University Monterey Bay Publication_Date: 20061231 Title: Ptpinosptjoemosaic.tif Geospatial_Data_Presentation_Form: raster digital data Online_Linkage: http://seafloor.otterlabs.org/SFMLwebDATA_mb.htm#MONT Type_of_Source_Media: digital file of gridded sidescan Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000607 Ending_Date: 20000615 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Pt Pinos SSS Source_Contribution: Gridded sidescan sonar data (0.2-meter resolution). Source_Information: Source_Citation: Citation_Information: Originator: Seafloor Mapping Lab, California State University Monterey Bay Publication_Date: 20061231 Title: SoCypressPtMosaic.tif Geospatial_Data_Presentation_Form: raster digital data Online_Linkage: http://seafloor.otterlabs.org/SFMLwebDATA_mb.htm#MONT Type_of_Source_Media: digital file of gridded sidescan Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000607 Ending_Date: 20000615 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: So Cypress Pt SSS Source_Contribution: Gridded sidescan sonar data (0.2-meter resolution). Process_Step: Process_Description: During the CSUMB mapping missions, an Applanix POS MV (Position and Orientation System for Marine Vessels) or a Teledyne TSS HDMS (Hydrographic Data Maintenance System) was used to provide position and attitude data during data collection, and they also accounted for vessel motion such as heave, pitch, and roll with navigational input from Trimble 4700 GPS or Cnav®-enabled NAVCON 2050 GPS receivers. Kinetic GPS (KGPS) altitude data were used to account for tide cycle fluctuations, and sound-velocity profiles were collected with an Applied Microsystems (AM) SVPlus sound velocimeter. Soundings were corrected for vessel motion using the Applanix POS MV or Teledyne TSS HDMS data, for variations in water-column sound velocity using the AM SVPlus data, and for variations in water height (tides) using vertical-position data from postprocessed GPS data. The Reson backscatter data were postprocessed using a variety of methods including Geocoder software, Isis Sonar and Delph Map software, and TNT Mips GIS software. For the data postprocessed using Geocoder, the backscatter intensities were radiometrically corrected (including despeckling and angle-varying gain adjustments), and the position of each acoustic sample was geometrically corrected for slant range on a line-by-line basis. After the lines were corrected, they were mosaicked into 1- or 2-m-resolution images. Overlap between parallel lines was resolved using a priority table whose values were based on the distance of each sample from the ship track, with samples that were closest to and furthest from the ship track being given the lowest priority. An anti-aliasing algorithm was also applied. The mosaics were then exported as georeferenced TIFF images, imported into a Geographic Information System (GIS), and converted to GRIDs at 1-m resolution. For the backscatter data postprocessed using the Isis, Delph Map, and TNT Mips method, individual tracklines were replayed and bottom tracking of the sonar was supervised to aid in proper slant-range correction. Line files were snipped to remove portions with poor imagery from the beginning and (or) end of the trackline. Tracklines were then corrected for slant-range and layback, and the position data for each line was smoothed using a speed filter. Each line was then gridded, georeferenced, and exported from Isis Sonar/Delph Map in GeoTIFF format. Individual trackline TIFF images were imported into TNT Mips GIS software and areas of poor image quality were extracted and removed. Individual tracklines were then overlaid to produce a mosaic image. Geotiffs were exported from TNT Mips, imported into a GIS and converted to GRIDs at 2-m spatial resolution (California State University, Monterey Bay, Seafloor Mapping Lab, 2015) Process_Date: 2006 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Carrie Bretz Contact_Organization: Seafloor Mapping Lab, California State University Monterey Bay Contact_Position: Projects Manager, GIS & Metadata Supervisor Contact_Address: Address_Type: mailing and physical address Address: 100 Campus Center, Bldg 13 City: Seaside State_or_Province: CA Postal_Code: 93955 Country: USA Contact_Voice_Telephone: 831.582.4197 Contact_Electronic_Mail_Address: carrie_bretz@csumb.edu Process_Step: Process_Description: California Seafloor Mapping Project 1- or 2-m resolution backscatter imagery within the Offshore of Monterey map area were downloaded from California State University, Monterey Bay, Seafloor Mapping Lab (http://seafloor.csumb.edu/SFMLwebDATA.htm) and converted to grids. Backscatter grids from similar mapping systems were merged together in a GIS and clipped to the boundary of the map area. Grids from different mapping systems were not merged together due to different mapping frequencies and processing techniques. Grids were downsampled to 2-m resolution and projected horizontally to WGS-84 using ESRI ArcTools. Process_Date: 2015 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Pete Dartnell Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Position: Physical Scientist Contact_Address: Address_Type: mailing and physical address Address: 2885 Mission St. City: Santa Cruz State_or_Province: CA Postal_Code: 95060-5792 Country: USA Contact_Voice_Telephone: (831) 460-7415 Contact_Electronic_Mail_Address: pdartnell@usgs.gov Process_Step: Process_Description: Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog. Process_Date: 20171005 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alan O. Allwardt Contact_Position: Contractor -- Information Specialist Contact_Address: Address_Type: mailing and physical address Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-7551 Contact_Facsimile_Telephone: 831-427-4748 Contact_Electronic_Mail_Address: aallwardt@usgs.gov Process_Step: Process_Description: Added keywords from Coastal and Marine Ecological Classification Standard (CMECS) to metadata. Process_Date: 20180426 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alan O. Allwardt Contact_Position: Contractor -- Information Specialist Contact_Address: Address_Type: mailing and physical address Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-7551 Contact_Facsimile_Telephone: 831-427-4748 Contact_Electronic_Mail_Address: aallwardt@usgs.gov Process_Step: Process_Description: Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. Process_Date: 20201019 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Process_Step: Process_Description: Performed minor edits to the metadata to correct typos. No data were changed Process_Date: 20211014 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Susan A. Cochran Contact_Position: Geologist Contact_Address: Address_Type: Mailing and Physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-7545 Contact_Electronic_Mail_Address: scochran@usgs.gov Process_Step: Process_Description: Edits were made to bring the metadata up to current PCMSC standards including standardizing authors' names, adding a doi# link, correcting typos, refining keywords, and using current access and distribution liability statements. Point of Contact and Metadata Contact information sections were changed to static PCMSC contact information. No data were changed. The metadata available from a harvester may supersede metadata bundled within a download file. Users are advised to compare the metadata date of this file to any similar file to ensure they are using the most recent version. Process_Date: 20220520 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Susan A. Cochran Contact_Position: Geologist Contact_Address: Address_Type: Mailing and Physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-7545 Contact_Electronic_Mail_Address: scochran@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 4462 Column_Count: 2651 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 10 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -123.00000 Latitude_of_Projection_Origin: 0.00000 False_Easting: 500000.0 False_Northing: 0.00 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 2.0 Ordinate_Resolution: 2.0 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: WGS84 Ellipsoid_Name: WGS84 Semi-major_Axis: 6378137.00 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Value Entity_Type_Definition: Backscatter [CSUMB 8101] intensity value Entity_Type_Definition_Source: ESRI Attribute: Attribute_Label: VALUE Attribute_Definition: Backscatter intensity values Attribute_Definition_Source: ESRI Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 255 Attribute_Units_of_Measure: Floating point values representing intensity Overview_Description: Entity_and_Attribute_Overview: The Reson 8101 acoustic-backscatter grid was originally archived as an ESRI grid with the following attributes: >Cell size = 2.0 >Number of rows = 8841 >Number of columns = 12433 > >Data type = floating point > >Boundary >Xmin = 583711 >Xmax = 608575 >Ymin = 4043542 >Ymax = 4061223 > >Statistics >Minimum value = 1 >Maximum value = 255 >Mean = 157.51 >Standard deviation = 53.04 > >Coordinate system description >Projection UTM >Zone 10 >Datum WGS84 >Units meter Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 345 Middlefield Rd City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-4309 Distribution_Liability: These databases, identified as acoustic-backscatter maps of the Offshore of Monterey map area, California have been approved for release and publication by the U.S. Geological Survey (USGS). Although these databases have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. These data are not intended for navigational use. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: TIFF Format_Version_Number: ArcMap (version 10.0, ESRI, 2011) Format_Specification: Raster data layer is registered TIFF image in the UTM Zone 10 coordinate system with datum WGS84. Format_Information_Content: The .zip file for the TIFF image includes the image (.tif), the world registration file (.tfw), and FGDC-compliant metadata for the Backscatter [CSUMB 8101] data layer of the Offshore of Monterey map area, California. File_Decompression_Technique: WinZip Transfer_Size: 7.4 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/56d0aebfe4b015c306ee9979 Network_Resource_Name: https://doi.org/10.5066/F70Z71C8 Network_Resource_Name: https://pubs.usgs.gov/ds/781/ Access_Instructions: Data can be downloaded using the Network Resource links. The first link will begin a direct download of the data. The second link is a landing page on which all of the downloadable data for a particular region are listed. The third link is a landing page for the entire data catalog. Fees: none Technical_Prerequisites: The downloadable data file has been compressed with the "zip" command and can be unzipped with Winzip (or other tool) on Windows systems. To utilize these data, the user must have software capable of uncompressing the WinZip file and importing and viewing an Esri ArcMap TIFF. Users should download the ArcGIS Project File, OffshoreMontereyGIS.mxd.zip, a compressed (with the "zip" command) version of the ArcMap document (.mxd) that has all the data layers loaded in the table of contents for "Offshore of Monterey map area" and has all the data symbolized as on the data release map sheets. Download and save this ArcGIS project file, including all data layers, to the directory the user has created for this GIS. Metadata_Reference_Information: Metadata_Date: 20220520 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060-5792 Country: US Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time